Michigan Supreme Court September 19, 1905, Docket No. 269 (People v. Colbath)

lead-opinion

Hooker, J.

It is the general rule that a person is competent to testify to his own age. When, however, it appears that he has no recollection of his mother, and has no information upon the subject from his relatives or other members of the family, his opinion, based on the statements of other persons, is not evidence, while the statements of such persons are hearsay.